Process for producing the hydroxides of alkali metals or of alkalineearth metals



Patented Apr. 7, 1925.

UNITED STATES PATENT OFFICE.

ERNST HEINZE, 'OF.WIESDORF-ON-THE-RHINE, GERMANY, ASSIGNOR TO FARBENF A-.

' BRIKEN VORMI. FRIEDR. BAYER AND (30., OF LEVERKUSEN- NEAR COLOGNE-ON THE-RHINE, GERMANY.

PROCESS FOR PRODUCING THE HYDROXIDES O F ALKALI METALS OBOE ALKALINE-1 EARTH METALS.

No Drawing.

To all whom it may concern:

Be it known that I, ERNsT HEINZE, a citizen of Germany, residing at VViesdorfon-the-Rhine, in the State of Prussia, Ger- 5 many, have invented new and useful Improvements in Processes'for Producing the Hydroxides of Alkali Metals or of Alkaline Earth Metals, of which the followingis a specification.

I have found a new and valuable process for producing thehydroxides of the alkali forming metals, that is, the alkali metals and the alkaline earth metals, which process is of a great technical value. It consists in decomposing amalgams of the metals with Water in the presence of alloys which are not attacked by the amalgams, water and lyes. -The k nown reaction between water and am'algams is very much accelerated by using such alloys, as an alloy of iron with ,21 per cent chromium, 6 per cent nickel and 0,3 per cent carbon or an alloy of iron with 75 per cent to 100 per cent of chromium. As examples of such alloys I give the following Iron with 22,4% of chromium and 7 ,4% of nickel.

Application-filed October 6, 1924. Serial No. 742,057. 7

Iron with 11,4% of chromium and 4,196 of .nickel Iron with 7,9% of chromium of nickel.

Iron with 14,272; of chromium.

Iron with 75% of chromium.

Iron with 100% of chromium.

'It'is profitable tomove the alloy against the amalgam or to stir the mixture. One may also use stirrers made, ofsuch alloys.

1. The process of producing the hydroxides of the alkali forming metals, which 40 process consists in treating an amalgam of an alkali forming metal with water in the presence of an alloy of iron with chromium, substantially as described.

2. The process of producing the hydroxides of the alkali forming' metals, which process consists in treating an amalgam of an alkali forming metal with water in the presence of an alloy of iron with chromium and nickel, substantially as described. 5(

In testimony whereof I have hereunto set, my hand.

and 3,25 4. 30

ERNST HEINZE. 

